Upstrem or Upstream: How To spell?

The word Upstrem is misspelled against Upstream, an adverb meaning "Toward the higher part of a stream; against the current."

Upstream has vowels 'ea' together mispronounced as 'e'
Word contains consecutive vowels 'EA' in between alphabets upstr & m is misspelled as 'E'
Wrong Spelling:  upstr-e-m 
Correct Spelling:  upstr-ea-m 
Explore spell check of Upstream to spell without errors.

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